var http_request = false;
function makePOSTRequest(url, parameters) {
  http_request = false;
  if (window.XMLHttpRequest) { // Mozilla, Safari,...
     http_request = new XMLHttpRequest();
     if (http_request.overrideMimeType) {
      	// set type accordingly to anticipated content type
        //http_request.overrideMimeType('text/xml');
        http_request.overrideMimeType('text/html');
     }
 } else if (window.ActiveXObject) { // IE
     try {
        http_request = new ActiveXObject("Msxml2.XMLHTTP");
     } catch (e) {
        try {
           http_request = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e) {}
     }
  }
  if (!http_request) {
     alert('Cannot create XMLHTTP instance');
     return false;
  }
    http_request.onreadystatechange = votealert;
    http_request.open('POST', url, true);
    http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    http_request.setRequestHeader("Content-length", parameters.length);
    http_request.setRequestHeader("Connection", "close");
    http_request.send(parameters);
}

function votealert() {
 if(http_request.readyState == 1) {
   document.getElementById('addrating').innerHTML = '<img src="/static/images/ajax.gif" border="0" style="vertical-align: middle" /> Processing...';
 }
 if (http_request.readyState == 4) {
    if (http_request.status == 200) {
       //alert(http_request.responseText);
       result = http_request.responseText;
       document.getElementById('addrating').innerHTML = result;        
       //flashMovie.reloadAll();
    } else {
       alert('There was a problem with the request.');
    }
  }
}
  
function get(obj) {
   var poststr = "series=" + encodeURI( document.getElementById("series").value ) +
                 "&rating=" + encodeURI( document.getElementById("rating").value );
   makePOSTRequest('/ajax/vote', poststr);
}